The New York Times Magazine has an article by Andrew Rice Is There Such a Thing as Agro-Imperialism? on new mega-investments in agricultural land in Africa.

This type of activity featured in the Millennium Ecosystem Assessment‘s TechnoGarden scenario as something that can have complicated ecological and social consequences. These investments often displace small scale farmers, but can greatly increase yields.  Indirectly they can benefit local people enhancing local agricultural infrastructure, skills, and economic opportunities – or they can just degrade local ecosystems for external benefit.  The article sets the stage and provides some examples from Ethiopia:

Investors who are taking part in the land rush say they are confronting a primal fear, a situation in which food is unavailable at any price. Over the 30 years between the mid-1970s and the middle of this decade, grain supplies soared and prices fell by about half, a steady trend that led many experts to believe that there was no limit to humanity’s capacity to feed itself. But in 2006, the situation reversed, in concert with a wider commodities boom. Food prices increased slightly that year, rose by a quarter in 2007 and skyrocketed in 2008. Surplus-producing countries like Argentina and Vietnam, worried about feeding their own populations, placed restrictions on exports. American consumers, if they noticed the food crisis at all, saw it in modestly inflated supermarket bills, especially for meat and dairy products. But to many countries — not just in the Middle East but also import-dependent nations like South Korea and Japan — the specter of hyperinflation and hoarding presented an existential threat.

“When some governments stop exporting rice or wheat, it becomes a real, serious problem for people that don’t have full self-sufficiency,” said Al Arabi Mohammed Hamdi, an economic adviser to the Arab Authority for Agricultural Investment and Development. Sitting in his office in Dubai, overlooking the cargo-laden wooden boats moored along the city’s creek, Hamdi told me his view, that the only way to assure food security is to control the means of production.

Hamdi’s agency, which coordinates investments on behalf of 20 member states, has recently announced several projects, including a tentative $250 million joint venture with two private companies, which is slated to receive heavy subsidies from a Saudi program called the King Abdullah Initiative for Saudi Agricultural Investment Abroad. He said the main fields of investment for the project would most likely be Sudan and Ethiopia, countries with favorable climates that are situated just across the Red Sea. Hamdi waved a sheaf of memos that had just arrived on his desk, which he said were from another partner, Sheik Mansour Bin Zayed Al Nahyan, a billionaire member of the royal family of the emirate of Abu Dhabi, who has shown interest in acquiring land in Sudan and Eritrea. “There is no problem about money,” Hamdi said. “It’s about where and how.”

…

All through the Rift Valley region, my travel companion, an Ethiopian economist, had taken to pointing out all the new fence posts, standing naked and knobby like freshly cut saplings — mundane signifiers, he said, of the recent rush for Ethiopian land. … Behind it, we could glimpse a vast expanse of dark volcanic soil, recently turned over by tractors. “So,” said my guide, “this belongs to the sheik.”

He meant Sheik Mohammed Al Amoudi, a Saudi Arabia-based oil-and-construction billionaire who was born in Ethiopia and maintains a close relationship with the Ethiopian Prime Minister Meles Zenawi’s autocratic regime. (Fear of both men led my guide to say he didn’t want to be identified by name.) Over time, Al Amoudi, one of the world’s 50 richest people, according to Forbes, has used his fortune and political ties to amass control over large portions of Ethiopia’s private sector, including mines, hotels and plantations on which he grows tea, coffee, rubber and japtropha, a plant that has enormous promise as a biofuel. Since the global price spike, he has been getting into the newly lucrative world food trade.

Ethiopia might seem an unlikely hotbed of agricultural investment. To most of the world, the country is defined by images of famine: about a million people died there during the drought of the mid-1980s, and today about four times that many depend on emergency food aid. But according to the World Bank, as much as three-quarters of Ethiopia’s arable land is not under cultivation, and agronomists say that with substantial capital expenditure, much of it could become bountiful. Since the world food crisis, Zenawi, a former Marxist rebel who has turned into a champion of private capital, has publicly said he is “very eager” to attract foreign farm investors by offering them what the government describes as “virgin land.” …

By far the most powerful opposition, however, surrounds the issue of land rights — a problem of historic proportions in Ethiopia. Just down the road from the farm on Lake Ziway, I caught sight of a gray-bearded man wearing a weathered pinstripe blazer, who was crouched over a ditch, washing his shoes. I stopped to ask him about the fence, and before long, a large group of villagers gathered around to tell me a resentful story. Decades ago, they said, during the rule of a Communist dictatorship in Ethiopia, the land was confiscated from them. After that dictatorship was overthrown, Al Amoudi took over the farm in a government privatization deal, over the futile objections of the displaced locals. The billionaire might consider the land his, but the villagers had long memories, and they angrily maintained that they were its rightful owners.

For more see Food Crisis and the Global Land Gra which is a website run by GRAIN an NGO supporting small-scale farmers.